All Questions
8 questions
27
votes
1
answer
534
views
The transit of Venus and solar neutrino rates
The following question was posed at the end of Maury Goodman's June 2012 long-baseline neutrino newsletter.
During the Venus transit of the sun, were more solar neutrinos
absorbed in Venus, or ...
8
votes
4
answers
6k
views
How do neutrinos pass through the sun so quickly?
If it takes thousands of years for light to escape our sun then how can neutrinos generated in the very center of the sun reach earth in just 8 minutes? Why is their speed so great that they can ...
- 835
3
votes
3
answers
354
views
Why don't the nuclear fusion processes inside the sun produce electron antineutrinos $(\bar\nu_e)$?
Why don't the nuclear fusion processes inside the sun produce $\bar\nu_e$ despite having the same mass as $\nu_e$? Is the reason as simple as "there is no production channel for $\bar\nu_e$s.&...
- 27.2k
3
votes
1
answer
296
views
Solar neutrino Spectrum - Why are there discrete energies for Be and pep?
What is the reason why some reactions give a continuum for the energy of the released neutrinos and others give only a discrete value ($\ ^7B$ and $pep$ )?
Thanks for your help. Please feel free to ...
- 653
20
votes
2
answers
7k
views
Sun light takes 1,000/30,000/100,000/170,000/1,000,000 years bouncing around inside to then reach the Earth
When light (photon particle) is generated inside the Sun, it takes a long time to bounce around inside to later escape and travel outwards.
Neutrinos escape immediately.
The numbers for the years ...
- 548
1
vote
3
answers
2k
views
Electron density in the Sun
I'm currently working on solar neutrino and in order to make a numerical simulation, I need the potential felt by electron-neutrino :
\begin{equation}
V_e(r) = \sqrt{2} G_F N_e(r)
\end{equation}
where ...
- 75
1
vote
1
answer
252
views
Neutrino beam energy
Neutrino is one of the most mysterious particles in todays physics. Even when values of some parameters like for example mass associated with it are not known (or there is great range of possible ...
- 201
0
votes
2
answers
280
views
Solar Neutrino Problem [closed]
I am not sure if this has been asked recently, but has there been any headway into solving the solar neutrino problem? I recently completed the Particle Physics for non-Physicists by Professor ...
- 2,754